Solid solutions in the rare-earth oxysulfide series

Journal Article · Sun Oct 31 23:00:00 EST 1976 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(76)90174-2· OSTI ID:7226836

Leskelae, M; Ninistoe, L

Investigations on the pseudobinary systems Ln/sub 2/O/sub 2/S--La/sub 2/O/sub 2/S (Ln = Nd, Sm, Eu, Gd, Dy, Yb, Lu, and Y) indicate complete solid solubility only for the systems Nd/sub 2/O/sub 2/S--La/sub 2/O/sub 2/S and Sm/sub 2/O/sub 2/S La/sub 2/O/sub 2/S; a two-phase region is found for all other systems. The solid solubility in the isostructural oxysulfide series is discussed in terms of the differences in ionic radii of the two rare-earth components. Powder diffraction studies on two further systems (Y/sub 2/O/sub 2/S--Nd/sub 2/O/sub 2/S and Y/sub 2/O/sub 2/S--Eu/sub 2/O/sub 2/S) are consistent with such radii differences.

• Research Organization: Helsinki Univ.
• OSTI ID: 7226836
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 19:3; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BINARY MIXTURES
CHEMICAL COMPOSITION
COHERENT SCATTERING
CRYSTAL STRUCTURE
DIFFRACTION
DISPERSIONS
MIXTURES
OXYGEN COMPOUNDS
OXYSULFIDES
RARE EARTH COMPOUNDS
SCATTERING
SOLID SOLUTIONS
SOLUBILITY
SOLUTIONS
SULFUR COMPOUNDS
X-RAY DIFFRACTION